Grams of Sugar to Tsp Conversion Calculator

Convert sugar mass in grams, kilograms, or ounces to US or metric teaspoons, or back again, for granulated, powdered, and packed brown sugar.

Grams of Sugar to Tsp Formula

Choose Volume from mass or Mass from volume. The formulas below use the chosen sugar type’s editable estimate and selected teaspoon volume. King Arthur cup references divided by 48 provide the US-teaspoon presets; packing and moisture affect the approximation.

tsp = (grams) / (d \times Vₜₛₚ)

US teaspoon = 4.92892159375 mL
Metric teaspoon = 5 mL.
Granulated sugar: 198 g per US cup → 4.125 g per US tsp (d ≈ 0.8369 g/mL)
Powdered/icing sugar, unsifted: 113 g per US cup → approximately 2.3542 g per US tsp (d ≈ 0.4776 g/mL)
Brown sugar, light (packed): shared packed-brown reference 213 g per US cup → 4.4375 g per US tsp (d ≈ 0.9003 g/mL)
Brown sugar, dark (packed): the same 213 g per US cup reference → 4.4375 g per US tsp (d ≈ 0.9003 g/mL); enter a measured value if your product differs.

Grams of Sugar to Tsp Conversion Table

Grams to US Teaspoons (Granulated Sugar)
Grams	Teaspoons (US)
1	0.242
2	0.485
3	0.727
4	0.970
5	1.212
7.5	1.818
10	2.424
12	2.909
15	3.636
20	4.848
25	6.061
30	7.273
35	8.485
40	9.697
50	12.121
60	14.545
75	18.182
100	24.242
125	30.303
150	36.364
* Granulated sugar, US tsp: chosen recipe reference 198 g per US cup → 1 tsp ≈ 4.125 g.

How do you convert grams of sugar to teaspoons? Use tsp = grams ÷ (density × tsp mL); for granulated sugar with US teaspoons, divide grams by 4.125 (since the chosen reference gives 1 US tsp ≈ 4.125 g).

How do you convert teaspoons of sugar to grams? Multiply teaspoons by density × tsp mL; for granulated sugar (US), grams ≈ tsp × 4.125.

Example Problem

Convert 18 g of granulated sugar to US teaspoons.

Use tsp = grams ÷ (d × V_tsp) with d = 198 ÷ 236.5882365 g/mL and V_tsp = 4.92892159375 mL.

tsp = 18 ÷ 4.125 ≈ 4.3636 US tsp

Grams of Sugar to Tsp Conversion Calculator screenshot